I mentioned this last week but I had jumped the gun so I removed the post. So here it is again, because I guess everyone is now ready for prime time. There's a new blog of "undecided" voters available here.
I could be wrong, but your 'centerist' seems very decided to me...
The feature examines statements made by Minnesota politicians and checks them for accuracy. Based on data analysis, document reviews and interviews with non-partisan analysts, statements are rated either true, false or inconclusive. PoliGraph is a collaboration between Minnesota Public Radio News and the Humphrey School of Public Affairs at the University of Minnesota.